Wash the lemons thoroughly under hot water and layer them in a large glass. Cover with cold water and soak for four days. Change water daily. Cut off a tip from each lemon and cut the fruit crosswise. Squeeze the lemons slightly and add about 1/4 teaspoon of salt to the cut.
Pour lemons and lemon leaves into a sterilized preserving jar. Season with 1 teaspoon of salt and lemon juice. Fill up with boiling water until the lemons are covered. Allow to stand for 3 weeks
waiting time approx. 3 weeks